In order to investigate the relationship between phase/microstructure and various properties of Ti-xAg alloys, a series of Ti-xAg alloys with Ag contents ranging from 5 to 20 wt% were prepared. The microstructures were characterized using X-ray diffractometry (XRD), optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). All of the Ti-xAg alloys s...

The microstructure of ternary L12-Al3(Sc1 yREy) intermetallics, where RE is one of the rare-earth elements selected from five light (La, Ce, Nd, Sm or Eu) or two heavy lanthanoids (Yb or Lu), was investigated as a function of RE concentration for 0.02 y 0.75. Alloys with light RE show two phases: L12-Al3(Sc,RE) and D019-Al3(RE,Sc) (or C11b-Al4(Eu,Sc)). Alloys with heavy RE exhibit a single L12A...

Wood-based carbon fiber derived from liquefied wood has the disadvantages of low mechanical strength and unstable performance. To improve its mechanical properties, wood-based carbon fiber precursors were impregnated with 5 wt.% and 8 wt.% boric acid solutions for 1 h and then carbonized at 900 °C for 1 h. The effect of boron content on fiber tensile strength and microstructure was investigated...

Fe-based coatings with high V and Cr content were obtained by laser cladding using Fe-based powder with different Cr3C2 and FeV50 content. The results showed that Fe-based coatings were uniform and dense. The constituent phases were mainly composed of α-Fe solid solution with the increase of Cr3C2 and FeV50, γ-Fe and V8C7 phases were achieved. The microstructure of the coatings exhibited a typi...

YCF104 alloy specimens were fabricated by laser cladding on #45 steel following three different scanning strategies. The microstructure, phase composition, friction coefficient, microhardness, tensile strength, and compressive strength of the formed strategies investigated. results show that uniformity remelting solidified layers improved microstructure refined grains. strengthening effect Fe–C...

This paper deals with the effect of microstructure condition on ignition temperature, mechanical and corrosion properties commercial WE43 alloy prepared by various processing techniques including conventional casting, extrusion, powder metallurgy methods such as spark plasma sintering. For different technique, differences in microstructures were observed, grain sizes, intermetallic phases, amou...

The determination of the mechanical properties a brazed joint is an important factor to reach metallurgical level development. This paper evaluates properties, and its correlation with microstructure, W-CuCrZr in high vacuum furnace using 80Cu-20Ti flexible filler material tape form. meant be implemented divertor application future fusion power plants. Main experimental parameters were brazing ...

Ceramic samples of polycomponent solid solution (Y0.96Eu0.01Sm0.01Tb0.01Er0.01)Nb0.7Ta0.3O4 have been prepared by sol–gel synthesis from fine powders obtained using nitrate solutions rare earth elements REE and coprecipitated hydroxides niobium tantalum. The structural state the initial powders’ crystal lattice has investigated. morphological features microstructure ceramics studied in dependen...

The relationship between processing parameters, microstructure, and mechanical properties of Al-8.3Fe-1.3V-1.8Si alloy processed by laser powder bed fusion is seldom studied. Therefore, fully dense alloys with two parameters were selected to investigate this key issue. results show that the low power scanning speed (S200) shows fan-shell-shaped melt pools tracks while another (S350) a deeper wi...

In the present study, influence of Zn content (0.0, 0.5, 1.0, and 2.0 wt.%) on microstructure, texture, tensile mechanical properties formability Mg-1.0Sn-0.5Ca-based alloys after extrusion were investigated via Mg sheets analysis extruded materials. Adding improved microstructure uniformity accelerated formation more CaMgSn Ca2Mg6Zn3 phase. addition, addition Zn, texture evolved from initial d...